is 2 104658727 - 1
has 31505417 decimal digits
takes 416.709 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual276146.227664.4737 %7620007620004.39931.5401 %150.626965.0208 %
Target276146.227664.4737 %65000012000000041.29373.9254 %187.521365.8682 %
Difference---+112000-119238000-36.8945-2.3853 %-36.8945-0.8474 %

Known prime factors (1 factor, 90.0 bits, 0.00008600% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
10465872712463910114059797485605702572890.0105954548880601135864
23 × 32 × 7 × 67 × 2309 × 138251 × 552397
2021-07-021382515523974,617,4000.92841.6244

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2021-07-02Simon Josefssoncto876200076200012890.0104.3991.540%


Trial Factoring results:
5758596061626364656667686970717273747576
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-04-24Richard2632640.019
2010-09-02Richard2642650.036
2012-05-06GIMP Philippines2652660.071
2013-09-02Cow_tippingManual testing2662680.428
2014-05-26g0bManual testing2682690.571
2014-10-12La GüiraManual testing2692701.142
2014-10-14arnaudsrv-6202702712.285
2015-01-10Quantum SingularityManual testing2712724.570
2020-03-04tscManual testing2722739.139
2020-04-01SRBaseManual testing27327418.28
2021-03-20lobsterfordinnerManual testing27427536.56
2021-03-241997rj7Manual testing27527673.11


ECM factoring results:
No ECM results for M104658727


Lucas-Lehmer results:
No L-L results for M104658727


PRP results:
No PRP results for M104658727


CERT results:
No CERT results for M104658727


P-1 factor-bounds graph:
B1 = 762000 (P-1 stage 1)
104
105
106
104
105
106
TF factor-bounds graph:
276
275
274
273
272
271
270
269
268
266
265
264
this exponent TF target: 76
TF double-checked to: 67
250
260
270
280
290
2100
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Last modified: 2024-03-13T02:15:48+00:00